Radiator



W SPARKS RADIATOR Flled Sept 25 1917 Feb. 5 1924.

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Patented Feb. 5, 1924.

stares WILLIAM SPARKS, OF JACKSON, MICHIGAN, ASSIGNOR T THESPARKS-WITHINGTON COMPANY OF JACKSON, MICHIGAN, 'A CORPORATION 0F OHIO.

RADIATOR.

Application led September 25, 1917. Serial No. 193,079.

To all whom z't' may concern.'

Be it known that I, WILLIAM SPARKS,

a citizen of the United Sta-tes, and resident of Jackson, in the countyof Jackson, in the State of Michigan, have invented new and usefulImprovements in Radiators, of'

which the following, taken in connection with lthe accompanyingdrawings, is a full, clear, and exact description.

This invention relates to radiators of the type particularly designedfor use in the cooling of internal combustion engines in which the watercircul ating tubes are separated by a spacer so fashioned and arrangedin conjunction with the water tubes as to provide a cellular structure.

The object of the invention is to provide a radiator of the above typeof increased efiiciency in cooling a circulating fluid, and preferablythis is etl'ected by providing the spacer with a multiplicity orplurality of perforations or openings permitting communication betweenadjacent cellular units of the radiator structure, and by permittingdirect contact of the air passing through the cellular units withsubstantially the entire exterior surface of the water tubes.

Other objects and advantages will appear from the following description,taken in connection with the accompanying drawin?, in whichigure 1 is afront View, partially 11i sectic n of a portion of a radiatorillustrative of the invention herein.

Figure 2 is a horizontal section through a portion of such a radiator.

Figure 3 is a perspective view of a portion of the spacer.

The radiator shown comprises a series of vertically arranged water tubes-1 of corrugated form, each corrugation at the vertical marginal edgesof the tube in this specific illustration constituting three sides of 'ahexagonal cell.

The upper and lower ends of the tubular cells may be connected in theusual manner t0 upper and lower headers or tanks, respectively, (notshown) in any suitable or well known manner, not necessary to hereinillustrate or further describe.

Each water tube 1 is separated from the adjacent water tube or tubes bya spacer -2, likewise, in this specific il ustration, of corrugatedform, and each corrugation at the vertical marginal edges of the spacerin the opposite direction so that these loops constituting three sidesof a hexa onal cell, so that when the spacer is place vbetween twoadjacent water tubes two verticall disposed rows of hexagonal cells areforme one-half of each cell of each row being above or below, or bothabove and below, one-half a cell of the adjacent vertical row of cells.i

Theintermediate portion of the spacer and the intermediate portions ofthe water tubes need not be corrugated with that exactness used inshaping the marginal edges of both the spacer and the water tubes, asthe attachment of the intermediate portion of the spacer to theintermediate portions of the water tubes is not necessary, and inractice is not generally effected.

he marginal portions of the water tubes and the spacer which lie incontact, in this illustration in substantially vertical planes, may besecured together in any suitable manner, as by solder or the like, toconstitute a unitary cellular structure.

The spacer, as best shown in Figure 3, is provided at each edge withinthe marginalA portions -3- that are shaped with exactness, withoppositely offset loops 4- and -5-, respectively. The loops -K-lare slitat opposite sides from a depressed portion of a corrugation 'and arethen offset in the opposite direction from the portion of thecorrugation from which slit, while the loops -5- are slit at oppositesides from a raised portion of the corrugation and are oifset oo -4--and '5- extend within corrugations of different water tubes, the loop 4extending from one side yof the spacer -2 while the loop -5- extendsfrom the opposite side of the spacer.

The portion of the spacer intermediate the loops 4 and -5- is providedwith a multiplicity of perforations or openings t5- suiiicient in numberto materially interrupt the continuity of the spacer member 100 and topermit free passage of the yair from one cellular unit in the completedradiator structure to adjacent cellular units. Further, these openings,as well as the openings provided by the loops -4- and -5-, per- 105 mitdirect contact of air passing through the cells with the portions of thewater tubes with which the Spacer member ordinarily lies in contact. Byforming the spacer member with a multiplicity of openings, permit- 11otin free passage of air between the adjacent cel ular units of thestructure, the eiiiciency of the radiator in cooling the circulatingfluid is materially increased. Although I have shown and described oneparticular construction of radiator and one particular form andarrangement of the ce1- Jlular structure, I donot desire to limit myselfto the same, as the invention herein is adapted for application to manyand various forms of radiators irrespective of the exact form andarrangement of the cells7 and Ido not desire to limit myself to theexact form of spacer member here shown,' or to the shape or arrangementof the perforations or openings therein, as many changes may be made ineach and all oi' the same without departing from the spirit of thisinvention as set forth in the appended claims.

What I claim is 1. A radiator comprising a plurality of water tubes,each tube formed of a pair of strips of metal bent into similar tortuousform and shape, and nested together, and havin their edges o-set and inContact, and tieir central portions spaced apart, a spacer between eachadjacent pair of water tubes, said spacer formed of a strip of metalhaving its opposite edge portions accurately shaped to the same form andoutlinev as the edge of the strip constituting. the water tubes, saidspacer forming with said two adjacent water tubes two verticalover-lapping rows of cells, the said spacer constituting a symmetricalone-half ofthe wall of each cell, and pairs of loops formed inconnection with the spacer and positioned adjacent the respectiveaccurate shaped edge portions thereof, and extending in oppositedirections from the said spacer in the said rows of cells and spacedfrom the. walls of the water tubes.

2. A radiator comprising a pluralit of water tubes, each tube formed ofa pair of `and their central portions spaced apart, a

spacer between each'adjacent pair of water tubes, said spacer formed ofa strip of metal having its opposite edge portions accurately shaped tothe same form and outline'as the edge of the strip constituting thewater tubes, said spacer forming with twol said adjacent water tubes twovertical over-lapping rows of cells, the said spacer constituting asymmetrical one-half of the wall of each cell, and airs of loops formedin connection with tlie spacer and positioned adjacent the respectiveaccurate shaped edge portions thereof, and extending in oppositedirections from the said spacer in the said rows of cells and spacedfrom the walls of the water tubes, the intermediate portion ot' saidspacer between said loops provided with a multiplicity of perforations.

3. In a radiator, a pair of tortuous water tubesl` a spacer formed of asingle strip ot" material having its opposite edge portions accuratelyshaped to the same form and outline as the water tubes, said spacer'positioned between and forming with said water tubes two verticalover-lapping rows of cells and pairs of loops formed in connection withthe spacer and positioned adjacent the respective accurate shaped edgeportions and extending in opposite directions from the spacer into saidrows of cells and spaced from the walls of the water tubes, and theintermediate portion of said spacer between said loops being providedwith a multiplicity of perforations. y

In witness whereof I have hereunto set my hand this 18 day of Sept.1917.

' I WILLIAM SPARKS.

Witnesses:

HOWARD l?. DENIsoN, E. 0. THOMPSON.

